メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.969070892367 36.6911004290087, 136.970369997281 36.6911387236252, 136.970382715033 36.6916596739619, 136.970277333076 36.6919828799461, 136.96991965453 36.6928210469543, 136.969752618537 36.693243212457, 136.968984807479 36.695171241883, 136.968218142756 36.6952772126107, 136.967474459519 36.6953800004654, 136.967519079766 36.6946860016009, 136.968065177105 36.6946825275977, 136.967740025379 36.6941215678428, 136.967769959333 36.6931950002596, 136.967743774253 36.6931948871829, 136.967804870108 36.6910578827356, 136.968488787337 36.6910827953036, 136.968980959789 36.691096339229, 136.969070892367 36.6911004290087)) ^^http://www.opengis.net/ont/geosparql#wktLiteral